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A needle 5cm long can just rest on the surface of the water without wetting. What us it's weight? Surface tension is 0.007N/m​
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A needle 5cm long can just rest on the surface of the water without wetting. What us it's weight? Surface tension is 0.007N/m​

User Pedro Vanzella
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2 votes

Answer:

c

Step-by-step explanation:

User Munleashed
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